Patents by Inventor Rich Lloyd Martin

Rich Lloyd Martin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High performance phosphorus-containing corrosion inhibitors for inhibiting corrosion drilling system fluids
    Patent number: 6558619
    Abstract: A corrosion inhibitor comprising a quantity of a phosphorylated oxyalkylated polyol at a pH of 5.0 or higher which produces a first level of corrosion loss in an oxygenated corrosive system under given conditions, and an amount of a passivating agent effective to decrease the corrosion loss under said given conditions to a second level which is less than the first level. The passivating agent minimizes the impact of the corrosion inhibitor on the rheology of drilling system fluids.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: May 6, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Michael L. Walker, David J. Poelker, Rich Lloyd Martin